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Biology I and AP Biology

"Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house." 

~Henri Poincaré, Science and Hypothesis, 1905


 

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Erin Condiff

Erin's Summer Experience :D

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Mr Werner

AP Biology Syllabus

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Mr Werner

AP Biology Summer Expereriences

Posted by Mr Werner on July 1, 2011 at 1:30pm — 43 Comments

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Pre-Class

Societal questions around AP Biology topics that will work to develop your understanding and writing.

46 discussions

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Laura McCaughey replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
This hypothesis could be tested by designing an experiment that would compare a normal leaf to a leaf that was bitten. First you would get a healthy leaf and compare it with a bitten leaf. Then test an adjacent leaf and compare it to the bitten leaf…
2 hours ago
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Lela Mortezavi replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
You could possibly test this by having a leaf without the chemical, and a leaf for the caterpillar. I would then observe the changes that occur from the healthy leaf to the eaten leaf. Also, I would have to observe if there were any changes for the…
3 hours ago
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Kim Lim replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
One way to test the hypothesis by setting up a caterpillar on a tropical shrub that has a impermeable barrier on the stem of the leaf where the caterpillar will be eating. If the caterpillar still eats, then the signal did not transfer to the…
3 hours ago
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Katherine Bauman replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
To test this you could cut a bit of a leaf off and then take the leaves surrounding it off to test their chemical composition compared to the first leaf. Test a healthy leaf and a leaf bitten by a caterpillar to make sure that their chemical makeup…
3 hours ago
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Emna Bakillah replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
To test this hypothesis, I would create some sort of barrier that would block one leaf from an adjacent leaf. If the caterpillar goes on to eat the adjacent leaf, that means that the bad-tasting chemical was not made. When the signal stops, the…
3 hours ago
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Karen H replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
To test this theory, one could utilize a permeable and non-permeable membrane between the leave and branch that the leaf is situated on. If the plant were sending out a hormone, it would be blocked by the non-permeable membrane but not by the…
3 hours ago
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Amanda McAteer replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
You could test this hypothesis by first testing a healthy leaf, then one that has been bitten, and then the adjacent leaves around the bitten leaf. Observe any chemical changes between the control group (healthy leaf) and the adjacent leaves. Also,…
3 hours ago
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Laura Sargent replied to Mr Werner's discussion 'Pre-Class, Ch 39: Plant Responses to Internal and External Signals'
In order to test this hypothesis, you could test both a healthy leaf and a leaf that has been bitten for their chemical structures. Then test the chemical structure of leaves around them. Then note any differences and study them. Maybe test a leaf…
3 hours ago
 
 
 

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